Seiko Hattori-NH35 Movement Japan 3 Hand Automatic Watch Movement

Dimensions & Sizing

 Ligne Size: 12''' (Ligne)

 Outside Diameter: 27.40 mm

 Casing Diameter: 29.36 mm (including the standard plastic dial holding spacer)

 Total Height (Movement): 5.32 mm

 Overall Height: 7.55 mm to 7.6 mm (from the bottom of the movement to the top of the sweep second pinion)

 Hand Hole Sizes: 1.50 mm (Hour) / 0.89 mm - 0.90 mm (Minute) / 0.21 mm (Second)

 Stem Size / Part Number: Part #351.200 (Tap 10)

Timegrapher & Regulation Data

 Vibrations Per Hour: 21,600 bph (3 Hz) / 6 beats per second

 Lift Angle: 53 degrees (crucial for setting your timegrapher accurately)

 Jewels: 24 Jewels

 Factory Accuracy: -20 to +40 seconds per day (tested statically at 23º± 2ºC within 10-60 minutes of a full wind)

 Power Reserve: 41+ hours

 Anti-Magnetic Rating: ≧ 4800 A/m (Direct Current)

 Shock Protection: Diashock (Seiko’s proprietary shock-absorber device)

Functions & Operation

 Winding: Bi-directional automatic winding (via Magic Lever/ball bearing) and manual winding capability.

 Hacking: Yes (equipped with a stop-second device for precise time setting).

 Crown Positions:

 0 (Pushed in): Manual winding (clockwise).

 1 (First click): Quick date correction (counterclockwise).

 2 (Second click): Time setting and hacking (second hand stops).

 Dial Fixing: Secured by two dial legs into the holes of the plastic dial holding spacer.

 Maximum Hand Fitting Force: Hour & Minute (< 50 Newtons), Second (< 30 Newtons